mod expression with operands
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Lafrite
parent
8dd90bc85a
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@ -1,7 +1,7 @@
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#!/usr/bin/env python
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# encoding: utf-8
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from .generic import Stack, flatten_list, expand_list, isNumber, isOperator
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from .generic import Stack, flatten_list, expand_list, isNumber, isOperator, isNumerand
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from .render import txt, tex
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from .str2tokens import str2tokens
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from .operator import op
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@ -121,15 +121,15 @@ class Expression(object):
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old_s = new_s
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yield new_s
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try:
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for s in self.child.simplify():
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if old_s != s:
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yield s
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if not Expression.isExpression(self.child):
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yield self.STR_RENDER([self.child])
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try:
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for s in self.child.simplify():
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if old_s != s:
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yield s
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if not Expression.isExpression(self.child):
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yield self.STR_RENDER([self.child])
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except AttributeError:
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yield self.STR_RENDER([self.child])
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except AttributeError:
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yield self.STR_RENDER([self.child])
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def simplified(self):
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""" Get the simplified version of the expression """
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@ -157,7 +157,7 @@ class Expression(object):
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while len(tokenList) > 2:
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# on va chercher les motifs du genre A B +, quand l'operateur est d'arité 2, pour les calculer
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if isNumber(tokenList[0]) and isNumber(tokenList[1]) \
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if isNumerand(tokenList[0]) and isNumerand(tokenList[1]) \
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and isOperator(tokenList[2]) and tokenList[2].arity == 2 :
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# S'il y a une opération à faire
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@ -173,7 +173,7 @@ class Expression(object):
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del tokenList[0:3]
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# Et les motifs du gens A -, quand l'operateur est d'arité 1
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elif isNumber(tokenList[0]) \
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elif isNumerand(tokenList[0]) \
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and isOperator(tokenList[1]) and tokenList[1].arity == 1:
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# S'il y a une opération à faire
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@ -192,7 +192,7 @@ class Expression(object):
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del tokenList[0]
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if len(tokenList) == 2 and isNumber(tokenList[0]) \
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if len(tokenList) == 2 and isNumerand(tokenList[0]) \
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and isOperator(tokenList[1]) and tokenList[1].arity == 1:
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# S'il reste deux éléments dont un operation d'arité 1
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op1 = tokenList[0]
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@ -283,81 +283,83 @@ class Expression(object):
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def test(exp):
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a = Expression(exp)
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print(a)
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#print(a)
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for i in a.simplify():
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print(type(i))
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print(i)
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print(type(a.simplified()), ":", a.simplified())
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#print(type(a.simplified()), ":", a.simplified())
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print("\n")
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if __name__ == '__main__':
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Expression.set_render(txt)
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exp1 = "2 ^ 3 * 5"
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test(exp1)
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#exp = "2 ^ 3 * 5"
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#test(exp)
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Expression.set_render(tex)
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test(exp1)
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from pymath.operator import op
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exp = [2, 3, op.pw, 5, op.mul]
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exp = "2x + 5"
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test(exp)
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Expression.set_render(txt)
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#Expression.set_render(tex)
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test([Expression(exp1), Expression(exp), op.add])
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#test(exp1)
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exp = "1 + 3 * 5"
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e = Expression(exp)
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f = -e
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print(f)
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#from pymath.operator import op
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#exp = [2, 3, op.pw, 5, op.mul]
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#test(exp)
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exp = "2 * 3 * 3 * 5"
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test(exp)
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#test([Expression(exp1), Expression(exp), op.add])
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exp = "2 * 3 + 3 * 5"
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test(exp)
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#exp = "1 + 3 * 5"
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#e = Expression(exp)
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#f = -e
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#print(f)
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exp = "2 * ( 3 + 4 ) + 3 * 5"
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test(exp)
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#exp = "2 * 3 * 3 * 5"
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#test(exp)
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exp = "2 * ( 3 + 4 ) + ( 3 - 4 ) * 5"
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test(exp)
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exp = "2 * ( 2 - ( 3 + 4 ) ) + ( 3 - 4 ) * 5"
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test(exp)
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exp = "2 * ( 2 - ( 3 + 4 ) ) + 5 * ( 3 - 4 )"
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test(exp)
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exp = "2 + 5 * ( 3 - 4 )"
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test(exp)
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#exp = "2 * 3 + 3 * 5"
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#test(exp)
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exp = "( 2 + 5 ) * ( 3 - 4 )^4"
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test(exp)
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#exp = "2 * ( 3 + 4 ) + 3 * 5"
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#test(exp)
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exp = "( 2 + 5 ) * ( 3 * 4 )"
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test(exp)
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#exp = "2 * ( 3 + 4 ) + ( 3 - 4 ) * 5"
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#test(exp)
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#
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#exp = "2 * ( 2 - ( 3 + 4 ) ) + ( 3 - 4 ) * 5"
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#test(exp)
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#
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#exp = "2 * ( 2 - ( 3 + 4 ) ) + 5 * ( 3 - 4 )"
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#test(exp)
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#
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#exp = "2 + 5 * ( 3 - 4 )"
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#test(exp)
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exp = "( 2 + 5 - 1 ) / ( 3 * 4 )"
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test(exp)
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#exp = "( 2 + 5 ) * ( 3 - 4 )^4"
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#test(exp)
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exp = "( 2 + 5 ) / ( 3 * 4 ) + 1 / 12"
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test(exp)
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#exp = "( 2 + 5 ) * ( 3 * 4 )"
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#test(exp)
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exp = "( 2+ 5 )/( 3 * 4 ) + 1 / 2"
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test(exp)
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#exp = "( 2 + 5 - 1 ) / ( 3 * 4 )"
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#test(exp)
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exp="(-2+5)/(3*4)+1/12+5*5"
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test(exp)
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#exp = "( 2 + 5 ) / ( 3 * 4 ) + 1 / 12"
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#test(exp)
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exp="-2*4(12 + 1)(3-12)"
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test(exp)
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#exp = "( 2+ 5 )/( 3 * 4 ) + 1 / 2"
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#test(exp)
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#exp="(-2+5)/(3*4)+1/12+5*5"
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#test(exp)
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#exp="-2*4(12 + 1)(3-12)"
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#test(exp)
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exp="(-2+5)/(3*4)+1/12+5*5"
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test(exp)
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#exp="(-2+5)/(3*4)+1/12+5*5"
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#test(exp)
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# TODO: The next one doesn't work |ven. janv. 17 14:56:58 CET 2014
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#exp="-2*(-a)(12 + 1)(3-12)"
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